February 2nd – World Wetlands Day
March 6th – International Energy Saving Day
March 22nd – World Water Day
March 23rd – World Meteorological Day
April 18th – World Heritage Day
April 22nd – Earth Day
May 10th – World Bird and Three Day
May 15th – International Climate Action Day
May 22nd – International Day for Biological Diversity
May 24th – European Parks Day
June 5th – World Environment Day
June 8th – World Ocean Day
July 1st – World Architecture Day
September 16th – International Day for the Preservation of the Ozone Layer
September 22nd – European Car Free Day
The third weekend of September – Clean Up the World Campaign
September 26th – Clean Mountains Day
October 1st – World Habitat Day
October 4th – World Animals Day
October 21st – Save Our Planet Day
November 29th – Buy Nothing Day
December 29th – World Biodiversity Conservation Day